Ballpoint pen



FIG. 1 is a perspective view of a ballpoint pen showing my new design;

FIG. 2 is a front view thereof, the back view being a mirror image of the front view;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is an enlarged top view thereof;

FIG. 6 is an enlarged bottom view thereof;

FIG. 7 is an enlarged front view of a portion thereof identified by the broken line in FIG. 2; and,

FIG. 8 is a front view of FIG. 1 with the writing tip ejected. 

CLAIM The ornamental design for a ballpoint pen, as shown and described. 